| Soignies to Provadia | 1,209.05 mi (1,945.77 km) |
| Soignies to Radnevo | 1,181.28 mi (1,901.08 km) |
| Soignies to Radomir | 1,049.81 mi (1,689.51 km) |
| Soignies to Rakitovo | 1,119.53 mi (1,801.71 km) |
| Soignies to Rakovski | 1,142.16 mi (1,838.13 km) |
| Soignies to Razgrad | 1,157.25 mi (1,862.41 km) |
| Soignies to Razlog | 1,099.35 mi (1,769.24 km) |
| Soignies to Ruse | 1,122.77 mi (1,806.93 km) |
| Soignies to Samokov | 1,083.15 mi (1,743.16 km) |
| Soignies to Sandanski | 1,106.15 mi (1,780.17 km) |
| Soignies to Sevlievo | 1,118.18 mi (1,799.53 km) |
| Soignies to Shumen | 1,184.19 mi (1,905.77 km) |
| Soignies to Silistra | 1,167.65 mi (1,879.15 km) |
| Soignies to Sliven | 1,182.33 mi (1,902.78 km) |
| Soignies to Smolyan | 1,161.61 mi (1,869.44 km) |
